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Texas Instruments BQ24259RGET — Power Management (PMIC / Gate Driver)

BQ24259RGET Texas Instruments Li-Ion Battery Charger IC

MPNBQ24259RGET
Active

Texas Instruments BQ24259RGET, single-cell Lithium Ion/Polymer battery charge controller, I²C and USB interface, 2 A maximum charge current, 24-VQFN exposed-pad package, active production.

$3.0400Ref. price · indicative, final on quote
Texas Instruments BQ24259RGET datasheet (PDF)
Packaging24-VFQFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24259RGET specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.2V
Supply voltage6.2V
Current - chargingConstant - Programmable
Charge current - max2A
InterfaceI²C, USB
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case24-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Current, Over Temperature, Over Voltage
Battery chemistryLithium Ion/Polymer

Product details

It communicates over I²C and also integrates a USB interface, making it suitable for portable devices that need flexible input power negotiation. Fault protection covers over-current, over-temperature, and over-voltage conditions, reducing external supervisory circuitry.

Charge current and thermal budget

Supply voltage ceiling is 6.2 V, so a 5 V USB bus or a regulated adapter rail is the typical input; the I²C bus lets the host adjust the charge current in real time.

ROHS3 compliant. For a current price and lead time on your BOM quantity, submit an RFQ — availability is confirmed per order.

Frequently asked questions

Does BQ24259RGET support USB charging?

Yes, the device includes a USB interface alongside I²C, allowing it to negotiate input current from a USB host or dedicated charger.

What is the maximum charge current for BQ24259RGET?

The maximum programmable charge current is 2 A. The actual current in a design is set via the I²C interface and should be derated based on thermal conditions.

Can BQ24259RGET charge a single Li-Po cell?

Yes, it is designed for single-cell Lithium Ion/Polymer batteries with a regulation voltage of 4.2 V.